Dental impression-tray.



J. LAUTENBURG.

DENTAL IMPRESSION TRAY.

APPLIQATION FILED MAR. 11, 1913.

Patented Jan. 13, 191 i.

tartan JOSEPH LAUTENBURG, OF NEW YORK, Y.

DENTAL IMPRESSION-TRAY.

restore.

Specification of Letters Patent.

Patented Jan. 13, 1914i.

Application filed March 11, 1913. Serial No. 753,531.

To all whom it may concern:

Be it known that I, JOSEPH LAUTENBURG, a citizen of the United States,residing at 270 Grand street, New York, in the county of New York andState of New York, have invented a new and useful Improvement in' DentalImpression-Trays, of which the following is a specification.

My invention relates to improvements in a dental impression tray usedfor taking impressions ofthe mouth and consists in the novel featureshereinafter set forth.

The objects of may improvement are zfirst, to provide an impressiontray, which could be employed with so called modeling compounds in theircold or solid state, the

tray being adapted for warming the modeling compound at any desiredinstant; second, to provide an impression tray adapted both for heatingthe modeling compounds before and for cooling the modeling compound inthe mouth after taking the impression and thus rendering it hard andsolid; third, to render the same ilnpression tray compact and convenientto manipulate, together with all its appurtenances: I attain theseobjects by the device illustrated in the accompanying drawings, inwhich- Figure l is a view of the inner side of the impression trayadapted for inclosin'g the modeling compound; Fig. 2 is a section ofthe'impression tray taken on the line A B of Fig. 1.

Similar numerals refer to similar parts throughout the several views ofthe drawmgs.

1 is the inner plate of the tray, made of a suitable shape; 2 is themiddle plate and 8 the outer plate; 4 is an electric stove or heaterinclosed between plates 1 and 2; 5 is a water-jacket inclosed betweenthe plates 2- and 3; 6 is a suitable handle for the tray.

7, 7 are short metal tubes or nipples adapted to act as inlet and outletfor the Water jacket 5; 8, 8 are the ends of the electric Wiring of theheater 4, adapted to be connected to suitable binding posts, which arenot shown; 9, 9 are the rubber tubes or flexible water conduits slippedon each at one end to one of the nipples, 7 7.

The operation of my device is as follows: A suitable lump or quantity ofmodeling compound being applied to the inner side of the tray in contactwith plate 1, the rubber tubes 9, 9 are slipped on at both ends to thenipples 7, 7, as shown, the electric the jacket 5, the water enteringthrough one a of the flexible conduits 9, 9, and nipples 7, 7, andpassing out through the other discharging it over the cuspidor. Thewater jacket will cool and solidify the modeling compound almost asrapidly as the heater will soften it. The tray is then Withdrawn fromthe mouth.

The water jacket is shown in the drawing as contained in a separatecompartment of the tray; but it could also be located in channels formedin the matrix or cement of the electric heater, of which the resistancewire only is shown in the drawings; the water jacket could also be madeof tubes embedded in the cement of the heater or otherwise placedbetween plates 1 and 2 of Fig. 2 in proximity to the modeling compound.The heater could also be placed inside the water jacket.

Instead of using electricity to heat the compound, steam, hot air or hotwater may be used in the same compartment between plates 1 and 2, whichcould also be used alternately as a cold water jacket; an additionalpair of metal nipples similar to those marked 7, 7 in the drawings wouldthen have to be employed for the heating fluid, instead of the electricwire connections 8, 8. Many other changes could be made in the form anddetails of my device without cleparting from the main scope of myinvention; I therefore do not restrict myself to the exact shape ofthe'apparatus as shown.

for generating heat located in said chamber.

2. A dental impression tray having embodied therein a chamber adapted towarm modeling compounds, combined with an electric heater, located insaid chamber and adapted to supply it with heat, andsuitable electricconduits and connections.

3. A dental lmprcssion tray having embodied therein a chamber adapted towarm modeling compounds, combined with means for generating heat locatedin said chamber adapted to supply it with heat, and a Water and a WMZQFjacket for cooling said modeljacket for cooling said modeling compounds.111g compounds. I w

1. A dental impression tray having em- 7 JOSEPH LAUTENBURG' 5' bodiedtherein a chamber adapted to warm 4 Witnesses: i

modeling compounds, combined with an JULIUS BLUMBERG, electric heater,located in said chamber and 1 ABE DEMBIAQKI.

